Founded in 1967, Thompson, Dreessen & Dorner Inc. offers a range of structural, civil, geotechnical and environmental engineering services to its clients. Based in Omaha, Neb., it provides engineering services to architects, owners, contractors, building developers, government agencies and others. The firm has structural engineering expertise in design for earthquakes, hurricanes, tornadoes and other unusual loads. Its scope of work includes investigations and reports, analysis of existing structures, design of new structures, foundation design and forensic engineering. Besides, it offers civil engineering services in areas like subdivision design, roadway design, site design, geotechnical investigations/reports, environmental assessments and soil percolation tests, to name a few.